Polyurethane foam gun



FIG. 1 shows a perspective view of a polyurethane foam gun;

FIG. 2 shows a front elevational view of FIG. 1;

FIG. 3 shows a left side elevational view of FIG. 1;

FIG. 4 shows a back elevational view of FIG. 1;

FIG. 5 shows a right side elevational view of FIG. 1;

FIG. 6 shows a top plan view of FIG. 1; and,

FIG. 7 shows a bottom view of FIG. 1.

The broken lines are for illustrative purposes only and illustrate portions of the polyurethane foam gun that form no part of the claimed design. 

CLAIM I claim the ornamental design for a polyurethane foam gun, as shown and described. 